csky: fixup remove vdsp implement for kernel.
authorGuo Ren <ren_guo@c-sky.com>
Sun, 30 Dec 2018 17:19:29 +0000 (01:19 +0800)
committerGuo Ren <ren_guo@c-sky.com>
Mon, 31 Dec 2018 14:56:59 +0000 (22:56 +0800)
commit35ff802af1c49dab21af8ef47b492ff952831d72
treece6813c19a11e1b40530ef138fd11cd235e4304e
parent2054f4af19575d9d2a43bcefa48d2e64f10a25de
csky: fixup remove vdsp implement for kernel.

The vr regs for vdsp only saved in task_switch not in every
exception trap-in. The memcpy with vdsp instructions will
destroy the vr regs for user space applications.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
arch/csky/abiv2/memcpy.S